LKAS, forward collision, high beam all alerts are going off and have been told it's a camera system that gets over heated. This is not a easy fix and needs to be recalled to clear up the codes and alerts.
2020 Acura MDX: headlights failing or too dim
9 of the 228 complaints about the 2020 Acura MDX describe headlights failing or too dim.
- owner complaints
- 9
- of this car's complaints
- 4%
- typical repair cost reported
- $2,000
- recalls
- 1
Is there a fix? There is 1 recall and 6 service bulletins for this area of the car. See below
Headlights failing or too dim by model year
What owners say
Multiple errors Lane departure and advanced driver support, ACC LKAS, auto high beam, and braking system. Looking into this more i see lots of people with the same issue failing front facing camera and not a cheap fix. Is there any current investigations into this problem or a software upgrade? I clear the errors and they come back once car is turned off and back on. If no fix to the current system there should be a way to disable LKAS and ACC without spending $2000 to replace the system.
My cruise control, automatic lane changing indicator light indicator, brake indicator light, high beam light indicator lights all keep coming off and on. Researching it on YouTube states that it’s the camera on my windshield getting too hot and it’s a known issue. It’s $1800 To fix but others have stated they get fixed and it doesn’t resolve the problem. Asking for your help.
Faulty forward facing camera affixed internally on windshield. Adaptive Cruise Control will not function. Lane Keeping Assist will not function. Collision Mitigation Braking may be unavailable. Vehicle detects oncoming traffic in opposing lane as a potential collision, causing braking system to engage and causing a risk of a collision or being struck from the rear despite no vehicle ahead except on the opposite side of the road. Acura can not find anything wrong with the vehicle. Recently all warning lights for high beams, braking system, LKAS, road departure, front end collision, etc flash on vehicle. Multiple people with Acura and Honda vehicles have reported the same issue with the front windshield sensor camera, yet no recall, instead they have paid thousands to replace a faulty camera system. Acura quoted $2000 for replacement of camera. Vehicle operationally runs fine. Why has nothing been done despite numerous, repetitive issues with this safety hazard?
Add Auto High Beam problem to the above Adaptive cruise control, lane keeping assist, and collision mitigation. Suddenly got several warning popups and persistent warning lights on related to the identified issues. We just replaced the battery a few months ago, and didn't have any of these problems until this week. Now, it happens every time we start the vehicle. We did the Recall software upgrade. I suspect these problems are related to that software upgrade. Many people online report identical problems without solutions. Please advise RE next steps for how to resolve.
Intermitted Flashing Dash Lights, Headlights, and Car Alarms. Steering wheel moving up and down. Looks like the same issue as Service Bulleting 21-055.
I drove my car in the morning and parked it in the lot for about an hour. After I came back and started my car, the following multiple safety systems displayed on my dashboard at the same time: - Lane Keeping Assist Problem - Collision Mitigation System Problem - Road Departure Mitigation System Problem - Auto High Beam Problem - Adaptive Cruise Control Problem When I took it to the dealership on the same day to diagnose this, they came back and said it was an internal failure with the camera and quoted me around $2200 to replace and recalibrate the camera. These lights just came on out of nowhere, I had no repairs or modifications with my windshield and there were no accidents of any sort. This appears to be a widespread problem among 2020 Acura MDX vehicles with similar camera modules. A malfunctioning front camera can prevent the vehicle from automatically braking or maintaining lanes, hence increasing the risk of collision. I am requesting that the federal safety agency investigate the front multi-purpose camera system on the 2020 Acura MDX for potential defect and safety hazard.
While driving my 2020 Acura MDX with 29,647 miles, all AcuraWatch safety systems suddenly failed at once, including Collision Mitigation Braking System (CMBS), Lane Keeping Assist, Road Departure Mitigation, Adaptive Cruise Control, and Automatic High Beams. Multiple warning messages appeared simultaneously. This disabled forward collision warning, automatic emergency braking, and lane departure/lane keeping functions, creating a serious safety risk. The dealer inspected the vehicle and confirmed an internal failure of the multipurpose front camera/radar unit, and recommended replacement of the entire assembly. The repair estimate is $2,200. The dealer stated the component has failed and cannot be repaired. This issue is widely reported by many Acura owners of similar model years, and appears to be a recurring defect. The failure occurred without any impact, damage, or modification. The vehicle is available for inspection. The symptoms began suddenly and all warnings appeared at the same time. Because this failure disables critical collision-avoidance and lane-keeping systems, it presents a significant risk to the driver and others on the road. I believe this should be investigated as a safety defect.
The contact leased a 2020 Acura MDX. The contact stated that the front driver’s and passenger’s side headlight covers became hazy, causing it to be difficult to see the roadway while driving. The vehicle was taken to the dealer where it was diagnosed that the headlight covers needed to be restored. The contact was informed by the dealer that the failure was a known issue. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was provided a case number, but no further assistance was provided. The failure mileage was approximately 36,000. The VIN was unavailable.
Service bulletins that may apply
Related recalls
Interior lighting
- What is wrong
- Honda (American Honda Motor Co.) is recalling certain 2014-2020 Acura MDX vehicles. Moisture may enter the tailgate lid light assembly and wiring harness, which can cause the interior and exterior lights to fail, including the lid lights, position lights, license plate lights and taillights.
- Risk
- Vehicle lights that fail to illuminate can decrease visibility and increase the risk of a crash.
- Remedy
- Dealers will inspect the wiring and install a fuse harness, replace the lid light, and repair the body dust sealer, as necessary, free of charge. Owner notification letters were mailed May 30, 2025. Owners may contact Acura's customer service at 1‑800‑382‑2238. Acura's number for this recall is FLI. Vehicles included in this recall that were previously repaired under the federal safety agency recall number 19V‑256 will need to have the new remedy completed.
Recall number 25V259000 · Recall details
Questions about the 2020 Acura MDX headlights
Is headlights failing or too dim a common problem on the 2020 Acura MDX?
9 of 228 owner complaints about the 2020 Acura MDX (4%) mention headlights failing or too dim. The model year with the most reports is 2020.
How much does it cost to fix headlights failing or too dim on the 2020 Acura MDX?
Owners who mentioned a price put the repair at about $2,000 (median of 5 complaints that include a dollar amount). Costs vary with mileage, warranty and where the work is done.
Is there a recall or service bulletin for this on the 2020 Acura MDX?
There is 1 recall and 6 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2020 Acura MDX
Stalling 33Knocking 18Lane assist 16Adaptive cruise 14Collision warning 14Engine failure 13Loss of power 12Check engine light 11Start-stop 9Hesitation 8Sudden acceleration 5
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